which of the following is not a membranous organelle? multiple choice nucleus mitochondrion endoplasmic…

Brief Explanations:

Membranous organelles are surrounded by a membrane. The nucleus has a nuclear membrane, mitochondria have a double - membrane, endoplasmic reticulum has a membrane, and Golgi complex has a membrane. Ribosomes are non - membranous organelles made of rRNA and proteins, and they are the sites of protein synthesis.

Answer:

E. Ribosome